package com.cloud.bio;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class BioServer {

    public static void main(String[] args) throws IOException {
        // 思路
        //1.创建一个线程池
        //2.如果有客户端连接，就创建一个线程，与之通讯(单独写一个方法)
        ExecutorService executorService = Executors.newCachedThreadPool();

        // 创建一个ServerSocket
        ServerSocket serverSocket = new ServerSocket(6666);

        System.out.println("服务器启动了！");

        while (true) {
            System.out.println("线程信息id = "+Thread.currentThread().getId() + "名字为：" + Thread.currentThread().getName());
            // 如果没客户端连接了就一直阻塞在这里...
            System.out.println("等待连接...");
            // 监听，等待客户端连接
            final Socket socket = serverSocket.accept();
            System.out.println("连接到一个客户端！");

            // 就创建一个线程，与之通讯(单独写一个方法)
            executorService.execute(new Runnable() {
                // 我们可以重写
                public void run() {
                    // 可以和客户端通讯
                    handler(socket);
                }
            });
        }
    }

    // 编写一个handler方法和客户端通讯
    public static void handler(Socket socket) {
        byte[] bytes = new byte[1024];
        // 通过socket 获取输入流
        try {
            InputStream inputStream = socket.getInputStream();
            // 循环读取客户端发送的数据
            while (true) {
                System.out.println("线程信息id = "+Thread.currentThread().getId() + "名字为：" + Thread.currentThread().getName());
                System.out.println("read...  ");
                int read = inputStream.read(bytes);
                if (read != -1) {
                    System.out.println(new String(bytes, 0 , read));
                } else {
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            System.out.println("关闭和client的连接！");
        }

    }
}
